Scott Dorsey <
klu...@panix.com> wrote
> Rod Speed <
rod.sp...@gmail.com> wrote
>> Scott Dorsey <
klu...@panix.com> wrote
>>> Rod Speed <
rod.sp...@gmail.com> wrote
>> Those that use a basic commercial home reflux still normally
>> start with just a sugar and water mix fermented with yeast
>> and distil that to get as close to just ethanol as they can
>> and then flavor and dilute that with water.
>> Most do discard the first bit of the output of the
>> still so without actually analysing it, I don�t expect
>> that there is that much in the way of nasty fusel
>> oils or much 'all other kinds of stuff' either.
> You can still wind up with an awful lot of crap in there,
> depending on the yeast. Smell the beer, taste a little of
> it. Using a commercial yeast nutrient package and a very
> clean-fermenting yeast like a champagne yeast will help.
And starting with just sugar too. That�s not what you do with beer.
>>> and those turbo yeasts tend to produce a lot of phenols.
>>> Even if you're careful how you cut the heads and tails, a
>>> pot still will leave a lot of that crap behind.
>> But how much of that gets past the carbon filter ? Not
>> much IMO and that�s the reason for the carbon filter.
> I don't know, because I don't really know what the
> distribution of junk coming off the turbo yeast is.
Yeah, I've never seen any of the turbo yeast
suppliers give any data on that sort of thing at all.
> I'd agree that carbon filtration would take a lot
> of that out. Carbon filtration will also remove
> most high order alcohols which is a good thing.
Yeah, I assumed that�s why they use carbon filtration.
>>> If your goal is just to make as much alcohol as
>>> possible as cheaply as possible,
>> That is basically the main purpose with quite a bit of it,
>> just aiming to avoid paying the excise duty and to get
>> something that�s as drinkable as the cheap end of the
>> discounted scotches, not aiming for a single malt etc.
> There's not a lot of art in that, though.
True, but that�s not the aim, its just to get as good as the
cheap end of commercial scotches for a much better price.
We have the rather bizarre situation where so much of the
english speaking world charges a hell of a lot of excise duty
on stuff like spirits, essentially as a IMO misguided approach
of slugging those who prefer to drink spirits over the much
lower taxed high proof end of the wine industry like sherrys
and ports etc.
> That seems kind of sad and depressing when you can
> use the same apparatus with a little bit more care to
> make an apple brandy that is as good as anything
> that ever came from Calvados.
True, but some of us are more into the scotch
end of the spirit market and in my case I don�t
mix it with anything at all, not even water or ice.
Which makes it harder to get close to the quite
decent commercial stuff like say Johnny Walker etc.
I much prefer the best end of the single malts,
just don�t see that it makes any sense to be
spending anything like that sort of money
on day to day drinking scotch.
>> Particularly when you brew your own beer to get better
>> than the commercial beer and to avoid paying the excise
>> duty, that what most are trying to do with home distilling.
> Around here, it is more that it is a centuries-old tradition
> that people are trying to keep alive, also some people
> think of it as a form of rebellion against taxation.
I must admit I am in the last category. Not so much against
all taxation, more the rather bizarre situation where the
high proof end of the wine industry with stuff like sherry
and port isnt taxed at anything like the same level as with
the spirits like scotch and gin and brandy etc.
That�s not the reason I brew beer, I do that because the
result is much better than the best of the commercial
beer, even the bespoke commercial beers and isnt that
hard to do at all.
>> Is not really feasible to do better than the best of the commercial
>> aged single malts etc on the time for aging alone tho I would
>> certainly prefer to go that route if I could. But if it was that easy,
>> you'd
>> expect someone would be doing it commercially and they arent.
> I think it's easier to do whiskeys than brandies and it's possible
> to make a wide variety of good whiskeys that, while very different
> than a proper Scotch, are still quite pleasant and drinkable.
Yeah, no argument there. Unfortunately for me my preference is scotch.
As far as quite pleasant and drinkable is concerned, as good
as the best of the mass market commercial scotches is fine.
>> Hordes do. To get back to the original question, if that what you
>> want, presumably there is no point in a fancy reflux still, you might
>> as well just take the packing out of a commercial electric still and
>> get the benefit of easier maintenance, easier cleaning involved etc.
> I think that adding a reflux chamber to a
> commercial electric still would not be difficult
You can buy them like that.
> and would mean you could probably get away
> with two passes through the still rather than three.
Do you really need more than one if you just
want ethanol and don�t care about the proof
because you are diluting it anyway.
Which brings up another question, why is commercial
scotch largely of about the same proof given its diluted ?
>>> Things like fruit brandies tend to take a lot more aging to
>>> mellow out, but you can make a poire william or something
>>> at home that you can drink immediately. The key to doing
>>> that, I think, is to have the cleanest possible beer.
>> What do you mean by that ? Do you mean
>> actually filtering it before distilling it ?
> I mean by "clean" that the beer doesn't have much nasty
> stuff in it. The less nasty stuff you put into the still, the
> less nasty stuff you are going to get out the other end.
Sure, but why bother with beer at all rather than just clean
sugar given that you are going for just the ethanol ?
> This is more important in the case of an alembic than a pot still, more
> important for a pot still than a reflux still, more important for a reflux
> still than a column. The sharper the range of molecular weights you
> are selecting for, the less careful you have to be about that.
Particularly when combined with a carbon filter.
>> I'm not sure that you can actually by ethanol that�s distilled,
>> most of it is called absolute alcohol and that has the last of
>> the water removed using benzene and isnt fit to drink.
>>
http://en.wikipedia.org/wiki/Ethanol#Absolute_alcohol
> In most states of the US, you can buy "Everclear" which runs
> around 80% ethanol, and it's been run off a column. Other
> brands of grain alcohol are "Grain Belt" and "Golden Grain"
We don�t have anything like that for
some reason, presumably regulatory.
The drunks concentrate on the high proof end of the wine
industry, mostly cheap port etc in multi gallon flagons.
> and they are very popular beverages with ministers and
> gospel singers because they leave little scent on the breath.
We don�t have anything like as much of that in australia or britain either.
The roman catholic church has never opposed their priests drinking.
Not sure what the story is with the nuns.
> Most of the cheaper vodkas are the same product, diluted down to 40%.
> None of these are absolute or even close to absolute, but they are
> as close to absolute as you can get without doing anything fancy.
> In Mexico you can buy "aguardiente mineral" which is made from
> oxidation of ethylene gas, I believe. It comes in plastic jugs, diluted
> down to 40% alcohol, and it is very popular with the people who
> are seeking the most drunkenness for the least money.
We don�t have anything like that for some reason, just the flagon port etc.
Quite a few of the drunks are into sweet sherrys.
>>> Adding a deliberate refluxing stage (what people here in
>>> Virginia call a "thump barrel" or similar) is going to affect
>>> the flavour considerably, because it will narrow down the
>>> band of different molecular weights that pass through the still.
>> Presumably you mean there at any one time etc.
> Right. You still have the same process with the pot still that,
> as it heats up, light fractions come off, then heavier and heavier
> fractions as it continues to run. It's just that what is coming
> off is a narrower range of molecular weight.
> With the reflux stage, you can usually get up to barrel proof with
> two trips through the still rather than three, so it's less effort.
>>> A lot of people specifically avoid the thump barrel because
>>> they don't like the way it changes the taste. The advantage
>>> of the thump barrel is that it gives you a higher proof distillate,
>> Yeah, that what brought up my original question.
>> Why do you care about the proof if you dilute it anyway ?
> In part because repeated distillation also removes
> other stuff as well as water from the feedstock.
But the carbon filter replaces that approach.
>>> If you don't care about the taste or you're trying to eliminate the
>>> taste,
>>> the reflux still is a huge win. It's not as big a win for eliminating
>>> taste
>>> as the column still; the column still can pick out a very narrow range
>>> of molecular weights from the raw beer and one trip through the still
>>> gives you very pure alcohol. But, the column still is a pain to operate
>>> on a small production basis.
>> Why ?
> Partly the difficulty of getting the thing started.
Never had any trouble in that regard with column stills when I was a
chemist.
> The Busch brewery around here runs a small (50 litre/day output) column
> which they use to extract commercial alcohol out of spent mash and other
> general waste. It more or less runs unattended taking feed from a big
> holding tank, but if they run the tank dry it's normally a day-long
> operation
> getting all of the temperatures right to get the thing started properly
> again.
Wonder why ?
You certainly don�t get that effect with the glass column stills used
in the chem lab. Those are a batch system tho, not continuous.
>> I used to be a chemist, and I did wonder about going
>> that route with a standard chem lab column still and
>> I did wonder why it wasn�t used more.
>> I don�t see why its any harder to use than one of the small
>> commercial stainless steel reflux stills being discussed.
> I don't know, I have never run one myself. I've run some
> big commercial pot stills, but never any kind of column. I'd
> love to see someone try it, though! It could be a fun project.
Yeah, that was my reaction too.